Door opening tool, lever handle operating tool, and door opening device

Abstract

To provide a technique for opening a door body by a tool small enough in size relative to the door body, regardless of the opening direction of the door body.SOLUTION: A door opening tool 20 has an attachment part 21 fixed to an end of a door body 101 of a swing type door 100, and a pressing part 22 provided on the attachment part 21 to press a door stop 102A provided on a frame 102 of the door 100 by a compression coil spring 32 (biasing member).SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a door opening device, a lever handle operating device, and a door opening apparatus. [Background technology]

[0002] Swing doors with lever handles are widely used in buildings such as homes, offices, and public facilities. When the lever handle is rotated, the latch bolt of the door latch mechanism disengages from the latch receiver, allowing the door to open. Generally, to open a door, it is necessary to grasp and push down the lever handle.

[0003] Patent Document 1 discloses a door-opening device that allows a door to be opened by pushing a push member without having to grip and push down a lever handle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-133362 Summary of the Invention [Problem to be solved by the invention]

[0005] The door-opening device described in Patent Document 1 is fixed to the door body with fixing members such as bolts. The size of this door-opening device is large enough to cover almost the entire width of the door body. Furthermore, since this door-opening device is designed to push a push member, if the door is designed to be pushed to open, the door can be opened by pushing the push member. However, if the door is designed to be opened by pulling it forward, the door cannot be opened simply by the latch bolt being released from the latch receiver. In order to open the door, the door must be pulled.

[0006] The present disclosure aims to provide a technology that allows a door body to be opened using a device that is sufficiently small in size relative to the door body, regardless of the opening direction of the door body. [Means for solving the problem]

[0007] The door-opening device according to the first aspect has an attachment part that is fixed to the end of the door body of a swing-door type door, and a pressing part that is provided on the attachment part and presses a door stop provided on the door frame using a biasing member.

[0008] This door-opening device is a device that is small compared to the door body and has an attachment portion fixed to the end of the door body of a swing-door door. A swing-door door keeps the door body closed by a retaining device such as a latch bolt and latch receiver of a latch mechanism. When this retaining device is released, the pressing portion of the door-opening device presses the door stop with the aid of a biasing member. This reaction force causes the door body to separate from the door stop, opening the door body. This door-opening device can open the door body whether the door is structured to open by pushing the door body or by pulling the door body. When closing the door body, the pressing portion returns to its original position against the biasing force of the biasing member, allowing the door body to close to a position where the retaining device operates.

[0009] In a second aspect, in the door-opening device of the first aspect, the pressing portion is provided between the end of the door body and the door stop, the biasing member is provided on the opposite side of the door body from the door stop side in the thickness direction of the door body, and the pressing portion and a pressure-receiving portion that is movable relative to the mounting portion by the biasing force of the biasing member are connected by a transmission portion that straddles the edge of the door body, and the pressing portion moves as the pressure-receiving portion moves.

[0010] In this door-opening device, when the door holding device is released, the pressure-receiving portion moves relative to the mounting portion under the biasing force of the biasing member provided on the opposite side of the door stop in the thickness direction of the door body. The pressure-receiving portion is connected to the pressing portion provided between the end of the door body and the door stop by the transmission portion, so the pressing portion also moves as the pressure-receiving portion moves. In other words, the biasing force of the biasing member is transmitted by the transmission portion beyond the end of the door body to the pressing portion. As a result, the pressing portion provided between the door body and the door stop presses the door stop. This reaction separates the door body from the door stop, and the door body opens. Because the biasing member is provided on the opposite side of the door stop in the thickness direction of the door body, it is easy to ensure installation space for the biasing member.

[0011] In a third aspect, in the door-opening device according to the second aspect, the attachment part has a clamp, and the clamp has a base end provided on the opposite side of the door stop side in the thickness direction of the door body, a jaw part of the clamp provided between the door body and the door stop, and a spindle that screws onto the base end and can move back and forth in the thickness direction of the door body, and the base end and the jaw part are connected by a connecting part that straddles the edge of the door body, and the edge of the door body can be sandwiched between the tip of the spindle and the jaw part.

[0012] This door opener can be attached to the door body by clamping the end of the door body between the tip of the spindle of the clamp of the attachment part and the jaw part.

[0013] In a fourth aspect, in the door-opening device according to the third aspect, a stopper is provided on the jaw side of the clamp to determine an upper limit of movement of the pressing part by the biasing member.

[0014] In this door-opening device, the upper limit of the movement of the pressing part by the biasing member is determined by a stopper provided on the jaw side of the clamp. This limits the pressing member from jumping out unnecessarily, and allows the pressing part to return smoothly when the door body is closed. In a fifth aspect, in the door-opening device according to the third aspect, the transmission part moves while being guided by the clamp.

[0015] In this door-opening device, the transmission part that connects the pressure-receiving part and the pressing part moves while being guided by the clamp, so that the pressure-receiving part, the transmission part, and the pressing part move smoothly.

[0016] A lever handle operating device according to a sixth aspect is a lever handle operating device attached to a swing-door type door equipped with a lever handle, and comprises: a fixed member having an installation portion fixed to the door body of the door near the lever handle; a movable member having an abutment portion that can abut against the gripping portion of the lever handle and that is movable relative to the fixed member; and an operating portion that is provided on the movable member and can receive an input of force to move the movable member toward the installation portion, wherein the fixed member has a pillar portion extending from the installation portion side to the movable member side, and the movable member has a tubular portion that has an opening on the fixed member side, and the tubular portion is slidable relative to the pillar portion when the pillar portion is inserted into the inside of the tubular portion from the opening, and the abutment portion has a pressing surface that presses down the gripping portion while sliding against the gripping portion when the movable member is moved toward the installation portion.

[0017] This lever handle operating device can be attached to the door body without modifying the door body. Furthermore, by applying force to the operating part and moving the movable member toward the installation part of the fixed member, the pressing surface of the abutting part of the movable member slides against the grip part of the lever handle and presses down the grip part. Therefore, the latch bolt of the door latch mechanism can be released from the latch receiver without having to grip and press down the lever handle, thereby making the door body rotatable.

[0018] The column of the fixed member is inserted into the cylindrical portion of the movable member, and the cylindrical portion slides along the column when the movable member moves. In other words, the cylindrical portion is guided by the column. This increases the strength of the lever handle operating device.

[0019] In a seventh aspect, in the lever handle operating device of the sixth aspect, the operating part is capable of receiving a force input in the direction of movement of the movable member toward the installation part, and a force input from diagonally above that intersects with the movement direction.

[0020] In this lever handle operating device, the operating part can receive input of force in the direction of movement of the movable member toward the installation part, as well as input of force from diagonally above intersecting the direction of movement. Therefore, even if the operating part is positioned low when viewed from the operator of the lever handle, the movable member can be smoothly moved toward the installation part and the grip part of the lever handle can be pressed down.

[0021] In an eighth aspect, in the lever handle operating device of the sixth aspect, the movable member has a stopper portion that abuts against the gripping portion when the movable member is moved in the opposite direction to the installation portion while the pillar portion is inserted into the tubular portion.

[0022] In this lever handle operating device, when the movable member is moved in the direction away from the installation part, the stopper part of the movable member abuts on the grip part while the cylindrical part of the movable member is guided by the pillar part of the fixed part, thereby preventing the movable member from coming off the fixed member while the lever handle operating device is in use.

[0023] A door opening device according to a ninth aspect includes the door opening device according to any one of the first to fifth aspects and the lever handle operating device according to any one of the sixth to eighth aspects.

[0024] In this door-opening device, when the lever handle of the lever handle operating device is operated to release the latch bolt of the door from the latch receiver, the door body is opened by the door-opening device. Therefore, the door body can be opened simply by operating the lever handle operating device. [Effects of the Invention]

[0025] According to the present invention, the door body can be opened by a device that is sufficiently small in size relative to the door body, regardless of the opening direction of the door body. [Brief explanation of the drawings]

[0026] [Figure 1] (A) is a front view of a door on which a door-opening device according to this embodiment is installed. (B) is a cross-sectional view of the door taken along line AA extending in the vertical direction of the door in (A). (C) is a cross-sectional view of the door taken along line BB extending in the horizontal direction of the door in (A). [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] 3 is a cross-sectional view taken along the line DD in FIG. 2, showing the door-opening device. [Figure 6] 2 is an enlarged cross-sectional view taken along the CC arrow in FIG. 1, showing the door body to which the door-opening device is attached in a closed state. [Figure 7] 7 is a cross-sectional view showing a state in which the door body is opened by the action of the door-opening device from the state shown in FIG. 6. FIG. [Figure 8] FIG. 2 is a perspective view showing a lever handle operating device. [Figure 9] FIG. 2 is an exploded perspective view showing the lever handle operating device. [Figure 10] FIG. 2 is a perspective view showing a movable member extracted from the lever handle operating device. [Figure 11] FIG. 10 is a cross-sectional view showing the lever handle operating device attached to the door. [Figure 12] FIG. 2 is a cross-sectional view showing the lever handle operating device in use. DETAILED DESCRIPTION OF THE INVENTION

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Components indicated by the same reference numerals in each drawing are the same or similar components. Note that duplicated descriptions and reference numerals may be omitted in the embodiments described below. Furthermore, all drawings used in the following description are schematic, and the dimensional relationships and ratios of elements shown in the drawings do not necessarily correspond to the actual ones. Furthermore, the dimensional relationships and ratios of elements between multiple drawings do not necessarily correspond to the actual ones.

[0028] [Door opening device] FIG. 1 is a diagram showing a door 100 on which a door-opening device 10 according to this embodiment is installed. In FIG. 1, the side of the door 100 on which a door body 101 opens to approach an operator of a lever handle operating device 50 is referred to as the "front," and the side on which the door body 101 opens to move away from the operator is referred to as the "rear." The up, down, left, and right directions are defined as directions relative to the front of the door 100. FIG. 1(A) is a front view of the door 100. FIG. 1(B) is a cross-sectional view of the door 100 taken along line AA extending in the up-down direction of the door 100 in FIG. 1(A). FIG. 1(C) is a cross-sectional view of the door 100 taken along line BB extending in the horizontal direction of the door 100 in FIG. 1(A).

[0029] The door 100 is a hinged door made of wood, aluminum, or the like, and is installed in an opening in the wall 14 of the building 12. The door 100 comprises a door body 101 and a door frame 102 to which the door body 101 is fixed. Depending on the building, there may be little space between the ceiling 16 and the frame 102. Furthermore, depending on the design of the frame 102, the width of the frame 102 may be narrow.

[0030] The door body 101 has a rectangular plate-like shape with its longitudinal direction extending vertically and is rotatably attached to a frame 102 by hinges 103. The door body 101 can rotate toward the front from the state shown in FIG. 1 around the hinges 103, but cannot rotate toward the rear. The frame 102 is made of wood or aluminum, and defines a rectangular space within it with its longitudinal direction extending vertically. The frame 102 is fixed to a wall 14 of the building 12 with screws, nails, or the like. As shown in FIG. 6 , the top and left and right frames of the frame 102 are provided with door stops 102A that abut or are close to the ends of the door body 101 when the door body 101 is closed. The door 100 can be closed to separate the space within the building 12 or the interior and exterior of the building 12. When the door 100 is closed, a small gap of several millimeters is formed between the door body 101 and the frame 102.

[0031] Lever handles 104 that can rotate downward relative to the door body 101 are provided on the right side of the front and back surfaces of the door body 101. The lever handles 104 are made of metal such as aluminum alloy and are generally the part that is touched by the hand of an operator who opens or closes the door 100. The door body 101 is also provided with a latch mechanism (not shown) that operates in conjunction with the lever handle 104. When the lever handle 104 is in its initial position extending horizontally, the latch bolt of the latch mechanism protrudes from the right side surface of the door body 101 and is inserted into a latch receiver (not shown) provided on the right side surface of the frame 102, preventing the door body 101 from rotating. The latch mechanism is activated by rotating the lever handle 104 downward. When the latch mechanism is activated, the latch bolt retracts into the right side surface of the door body 101 and disengages from the latch receiver, allowing the door body 101 to open.

[0032] The door-opening device 10 is a device for opening a door 100 without directly operating a lever handle 104. The door-opening device 10 includes a door-opening instrument 20 and a lever handle operating instrument 50. The door-opening instrument 20 is an instrument used in combination with the lever handle operating instrument 50, for example. With the door-opening device 10 in which the lever handle operating instrument 50 and the door-opening instrument 20 are combined, the door 100 can be opened by operating the lever handle operating instrument only once, without operating the lever handle 104. The lever handle operating instrument 50 can be installed on either the front or rear side of the door body 101. The lever handle operating instrument 50 may be installed on at least one of the front and rear sides of the door body 101. In the following, a description will be given taking the lever handle operating instrument 50 installed on the front side of the door body 101 as an example.

[0033] [Door opening device] 2 to 7, the door opening device 20 has an attachment portion 21 and a pressing portion 22.

[0034] (Mounting part) The mounting portion 21 is fixed to an end portion, for example, an upper end portion, of the door body 101 of the hinged door. The mounting portion 21 has, for example, a clamp 23.

[0035] The clamp 23 has a base end 24, a jaw 25, and a spindle 27. The base end 24 is provided on the opposite side of the door stop 102A in the thickness direction of the door body 101. A pair of jaws 25 is provided on the clamp 23 between the door body 101 and the door stop 102A. The spindle 27 is threadedly engaged with the base end 24 and is movable back and forth in the thickness direction of the door body 101.

[0036] The base end 24 and the pair of jaws 25 are connected, for example, by a pair of connecting portions 26 that straddle the edge of the door body 101, and are, for example, integrated. The base end 24, the jaws 25, and the connecting portions 26 may be formed, for example, by bending a metal plate. The thickness of the connecting portions 26 is smaller than the gap between the door body 101 and the frame 102. In addition, the thickness of the jaws 25 is smaller than the gap between the door body 101 and the door stop 102A when the door 100 is in a closed state.

[0037] A female thread portion 24A is formed in the base end portion 24 by, for example, burring. The spindle 27 has, for example, a male thread portion 27A, which is screwed into the female thread portion 24A of the base end portion 24. A contact portion 28 made of, for example, rubber is attached to the tip of the spindle 27. The end of the door main body 101 can be sandwiched between this contact portion 28 and the jaw portion 25. The contact portion 28 is provided to increase friction with the door main body 101 and stabilize the attached state of the clamp 23.

[0038] The lower edges of the pair of jaws 25 are integrally connected by a connecting portion 29 that protrudes and terminates toward the rear side (the side opposite to the base end portion 24 side). A stopper 29A that determines an upper limit of movement of the pressing portion 22 by a compression coil spring 32 (described later) may be provided on the jaw 25 side of the clamp 23, for example, on the connecting portion 29. This stopper 29A corresponds to the rear end of a notch formed in the connecting portion 29, and is formed at a position away from the jaws 25.

[0039] A knob 30, for example, is attached to the rear end of the spindle 27. Rotating this knob 30 rotates the spindle 27, and the spindle 27 moves forward and backward in the thickness direction of the door body 101 due to the action of the screw. This allows the distance between the jaw 25 and the abutment portion 28 at the tip of the spindle 27 to be narrowed or widened.

[0040] The base end 24 and a portion of the connecting portion 26 of the clamp 23 are disposed inside a cover 31 made of, for example, resin. The cover 31 is formed with a bottom, with an opening 31A on the door main body 101 side. A pair of protrusions 31B protruding toward the inside of the cover 31 is provided on, for example, an upper wall portion 31U of the cover 31. A recess 31C is formed at a position corresponding to the protrusions 31B on the upper surface of the upper wall portion 31U. A notch 26B is formed in each of the pair of connecting portions 26, for example, on the end portion on the base end 24 side. The notch 26B engages with the protrusion 31B of the cover 31, thereby preventing the base end 24, the jaw portion 25, and the connecting portion 26 from separating from the cover 31. A through-hole 31D, through which the spindle 27 is inserted, is formed in a front wall portion 31R (the wall portion on the near side) of the cover 31.

[0041] (Pressing part) The pressing portion 22 is provided on the mounting portion 21 and is a portion that presses the door stop 102A provided on the frame 102 of the door 100 by a compression coil spring 32 as an example of a biasing member. The pressing portion 22 is provided between the door body 101 and the door stop 102A.

[0042] The compression coil spring 32 is provided on the opposite side of the door stop 102A in the thickness direction of the door body 101. The compression coil spring 32 is provided, for example, coaxially with the spindle 27, with one end abutting against the base end portion 24 and the other end abutting against the pressure receiving portion 33.

[0043] The pressure-receiving portion 33 is a portion that can move relative to the mounting portion 21 by receiving the biasing force of the compression coil spring 32. The pressing portion 22 and the pressure-receiving portion 33 are connected by a transmission portion 34 that straddles the edge of the door body 101, and are, for example, integrated. The pressing portion 22 moves as the pressure-receiving portion 33 moves. The pressing portion 22, the pressure-receiving portion 33, and the transmission portion 34 may be formed, for example, by bending a metal plate. The thickness of the transmission portion 34 is smaller than the gap between the door body 101 and the frame 102 and is, for example, equal to the thickness of the connecting portion 26 of the clamp 23. The width of the transmission portion 34 is set slightly smaller than the distance between the pair of connecting portions 26. As a result, the transmission portion 34 moves while being guided by the clamp 23. Specifically, the opposing inner edges of the pair of connecting portions 26 form guide portions 26A, and the transmission portion 34 is guided by the guide portions 26A on both sides of the guide portions 26A. However, such a guide structure does not necessarily have to be provided.

[0044] A through hole 33A is formed in the pressure receiving portion 33, through which the spindle 27 is inserted. The tip of the spindle 27 is inserted into this through hole 33A, and the abutment portion 28 is attached to the tip. As a result, the abutment portion 28 is located between the pressure receiving portion 33 and the pressing portion 22 (jaw portion 25).

[0045] In the direction of movement of the pressing portion 22, a part of the pressing portion 22 faces a stopper 29A provided on the connecting portion 29. A flange 39 that protrudes and terminates toward the back side (the side opposite the pressure-receiving portion 33) is provided on the lower edge of the pressing portion 22. The flange 39 is disposed below the connecting portion 29 of the clamp 23. The flange 39 is caught on the connecting portion 29, thereby preventing the pressing portion 22 from moving upward relative to the flange 39 and no longer facing the stopper 29A.

[0046] The stroke of movement of the pressing part 22 when the door 100 is opened or closed can be set by the depth of the notch in the connecting part 29 that forms the stopper 29A (the distance from the jaw part 25 to the stopper 29A).

[0047] (Action of the door-opening device) 1 and 6, the door-opening device 20 according to this embodiment has an attachment portion 21 fixed to a door body 101 of a hinged door 100. The door-opening device 20 can be attached to the door body 101 by clamping an end of the door body 101 between abutment portion 28 at the tip of a spindle 27 of a clamp 23 of the attachment portion 21 and a jaw portion 25. The door-opening device 20 is small compared to the door body 101. The hinged door 100 keeps the door body 101 closed by a retaining device (not shown) such as a latch bolt and latch receiver of a latch mechanism. When this retaining device is released by operating the lever handle 104 or a lever handle operating device 50 (described later), the pressing portion 22 of the door-opening device 20 presses the door stop 102A by means of a compression coil spring 32.

[0048] Specifically, the pressure-receiving portion 33 moves relative to the mounting portion 21 under the biasing force of the compression coil spring 32 provided on the opposite side of the door stop 102A in the thickness direction of the door body 101. If the compression coil spring 32 is provided coaxially with the spindle 27, the biasing force can be efficiently applied to the pressure-receiving portion 33. The pressure-receiving portion 33 is connected to the pressing portion 22 provided between the door body 101 and the door stop 102A by the transmission portion 34, so that the pressing portion 22 also moves as the pressure-receiving portion 33 moves. In other words, the biasing force of the compression coil spring 32 is transmitted to the pressing portion 22 by the transmission portion 34 beyond the end of the door body 101. As a result, the pressing portion 22 provided between the door body 101 and the door stop 102A presses the door stop 102A. This reaction moves the door body 101 away from the door stop 102A, opening the door body 101. Since the compression coil spring 32 is provided on the opposite side to the door stop 102A side in the thickness direction of the door body 101, it is easy to ensure an installation space for the compression coil spring 32.

[0049] Whether the door 100 is structured to open by pushing the door body 101 or by pulling the door body 101, the door body 101 can be opened by this door-opening device 20. When closing the door body 101, the pressing portion 22 returns to its original position against the biasing force of the compression coil spring 32, thereby closing the door body 101 to a position where the holding device operates.

[0050] The upper limit of the movement of the pressing portion 22 by the compression coil spring 32 is determined by a stopper 29A provided on the jaw portion 25 side of the clamp 23. This limits unnecessary protrusion of the pressing portion 22 material, so that the pressing portion 22 also returns smoothly when the door body 101 is closed.

[0051] The transmission part 34 that connects the pressure receiving part 33 and the pressing part 22 moves while being guided by the clamp 23, so that the pressure receiving part 33, the transmission part 34 and the pressing part 22 move smoothly.

[0052] As described above, the door-opening device 20 according to this embodiment is configured such that the pressing portion 22 presses the door stop 102A of the frame 102 of the door 100. Therefore, in FIG. 1 , even if there is little space between the ceiling 16 of the building 12 and the frame 102 and it is not possible to press the wall 14, or even if the frame 102 is narrow and it is not possible to press the frame 102 itself, the door body 101 can be opened. Furthermore, regardless of the opening direction of the door body 101, the door body 101 can be opened by a device that is sufficiently small in size relative to the door body 101. Note that in this embodiment, the door body 101 may be configured to be provided with only the door-opening device 20 without the lever handle operating device 50, and the door body 101 may be opened by the door-opening device when the lever handle 104 is operated.

[0053] [Lever handle operation device] In Fig. 1, a lever handle operating device 50 is attached to a swing-type door equipped with a lever handle 104, and is a device that allows the door 100 to be opened without operating the lever handle 104. In Figs. 8 to 12, the lever handle operating device 50 according to this embodiment includes a fixed member 60, a movable member 70, and an operating unit 76. In the description of the lever handle operating device 50, the "near side" means the side where the operating unit 76 is located.

[0054] The fixing member 60 has an installation portion 61 that is fixed to the door body 101 of the door 100 near the lever handle 104. The installation portion 61 is the rear surface on the far side and is formed to be generally flat. The fixing member 60 can be fixed to the surface of the door body 101 by, for example, attaching double-sided tape to the installation portion 61. The fixing member 60 has a pillar portion 63 that extends from the installation portion 61 side to the movable member 70 side. In this embodiment, the fixing member 60 includes a first fixing part 91 that has the installation portion 61, and a second fixing part 92 that has the pillar portion 63 and is attached to the first fixing part 91.

[0055] The first fixed component 91 has an installation portion 61, an upper plate portion 88, and left and right side plate portions 87. The first fixed component 91 is open at its lower portion (bottom opening 81) and front side (front opening 86). In the first fixed component 91, the lower portions of the front edges of the left and right side plate portions 87 form notched step portions 85 that are lowered further back than the upper portions. The notched step portions 85 are portions into which the free end of the grip portion of the lever handle 104 is inserted between the notched step portions 85 and the abutment portion 71 of the movable member 70. The depth dimension of the side plate portions 87 is shorter at the notched step portions 85 than at the upper portions.

[0056] The pillar portion 63 serves as a guide portion when the movable member 70 moves toward the installation portion 61. The pillar portion 63 is formed, for example, in a substantially rectangular cylindrical shape with an opening on the installation portion 61 side. The pillar portion 63 is formed, for example, at the upper part of the fixed member 60, protruding from the back plate portion 84 to outside the front opening 66. Gaps are formed between the pillar portion 63 and the side plate portion 67, and between the pillar portion 63 and the upper plate portion 68, for inserting cylindrical portions 78, which will be described later.

[0057] The front edge of the bottom plate 69 and parts of the front edges of the left and right side plate portions 67 form a notched step 65 that is lower than the front edges of the pillar portion 63. The notched step 65 is a portion into which the free end of the grip portion of the lever handle 104 is inserted between the notched step 65 and the abutment portion 71 of the movable member 70. The notched step 65 is located below the pillar portion 63, and the depth dimension of the side plate portions 67 at the notched step 65 portion is shorter than that of the pillar portion 63 portion. As shown in FIG. 9 , a groove 54 is provided on the inner surface of the installation portion 61, into which one end of the compression coil spring 53 is placed.

[0058] The position of the second fixing part 92 relative to the first fixing part 91 is adjusted to match the position of the gripping portion of the lever handle 104 relative to the door main body 101 (door 100). In the illustrated example (see FIG. 9), three mounting grooves 87A, 87B, and 87C are formed in the first fixing part 91. The mounting grooves 87A, 87B, and 87C each extend in the vertical direction, open downward, and are formed at a predetermined interval in parallel to the depth direction of the first fixing part 91. The arrangement pitch of the mounting grooves 87A, 87B, and 87C may or may not be constant. Above and below the mounting grooves 87A, 87B, and 87C, engagement portions 87D and 87E are provided at predetermined height positions, respectively. The engagement portions 87D and 87E are formed, for example, as recesses that communicate with the mounting grooves 87A, 87B, and 87C and are recessed toward the installation part 61.

[0059] The second fixing component 92 is a box-shaped component having a back panel 84, a top panel 68, left and right side panel sections 67, and a bottom panel section 69. The movable member 70 is inserted into the internal space 64 through a front opening 66, and the abutment section 71 of the movable member 70 can move toward the installation section 61. Protrusions 67D and 67E are provided on the top and bottom of the side panel sections 67 on both sides of the second fixing component 92, for example, on the rear end. After the second fixing component 92 is inserted into the first fixing component 91 with these protrusions 67D and 67E aligned with one of the mounting grooves 87A, 87B, or 87C, the second fixing component 92 can be shifted toward the installation section 61 to engage the protrusions 67D and 67E with the engagement sections 87D and 87E, respectively. This prevents the second fixing component 92 from coming off the first fixing component 91. This also makes it possible to adjust the attachment position of the second fixed part 92 relative to the first fixed part 91 in the depth direction. The second fixed part 92 is attached to the first fixed part 91 by sliding it in a direction intersecting the movement direction of the movable member 70, for example, in the up-down direction. Note that the second fixed part 92 may be prevented from coming off the first fixed part 91 by adhesion, fastening, or the like.

[0060] The movable member 70 is provided with a cylindrical portion 78 having an opening 78A on the fixed member 60 side. The cylindrical portion 78 is provided at the upper part of the movable member 70 in correspondence with the column portion 63. The cylindrical portion 78 is slidable relative to the column portion 63 in a state in which the column portion 63 is inserted into the inside of the cylindrical portion 78 through the opening 78A. For example, a groove 78B extends along the depth direction of the cylindrical portion 78 on, for example, the inner surface of the cylindrical portion 78. The depth direction end of the groove 78B is a portion that hooks onto a claw of an attachment portion 82 of the operating unit 76, which will be described later.

[0061] The movable member 70 has an abutting portion 71 that can abut against the grip portion of the lever handle 104, and is movable relative to the fixed member 60. The abutting portion 71 has a pressing surface 72 that presses down the grip portion while sliding against it when the movable member 70 is moved toward the installation portion 61. The pressing surface 72 may be inclined downward from the opening side of the cylindrical portion 78 toward the operating portion 76.

[0062] The movable member 70 is inserted into the front opening 66 of the second fixed component 92 from the cylindrical portion 78 and front plate portion 73 side. In other words, the cylindrical portion 78 and front plate portion 73 are sized to be able to move within the internal space 64 of the second fixed component 92 toward the back plate portion 84 and the opposite side (the front opening 66 side) as the movable member 70 moves. The front plate portion 73 extends downward from the end of the back side of the cylindrical portion 78. Note that the movable member 70 of this embodiment is formed so that the lower end of the front plate portion 73 does not contact the upper surface of the bottom plate portion 69 of the second fixed component 92; however, the lower end of the front plate portion 73 may be formed to slide on the upper surface of the bottom plate portion 69.

[0063] The movable member 70 further has a stopper portion 75. Between the abutment portion 71 and the stopper portion 75, an insertion space 74 is formed, into which the grip portion of the lever handle 104 can be inserted. The insertion space 74 is open downward. The stopper portion 75 is a portion that abuts against the grip portion of the lever handle 104 when the movable member 70 is moved in the direction opposite to the installation portion 61 side, with the column portion 63 inserted into the tubular portion 78. The stopper portion 75 is the surface of the front plate portion 73 on the abutment portion 71 side.

[0064] The abutment portion 71 is provided below the cylindrical portion 78 and on the front side of the stopper portion 75. The depression surface 72 is inclined downward from the back side to the front side, so that when the abutment portion 71 moves toward the installation portion 61, it can slide against the grip portion of the lever handle 104 and press down the grip portion. In this embodiment, the abutment portion 71 and the depression surface 72 are formed symmetrically, so that the lever handle operating device 50 can be used with a lever handle 104 facing either left or right.

[0065] A compression coil spring 53 is disposed between the fixed member 60 and the stopper portion 75 of the movable member 70, and urges the movable member 70 in the opposite direction (toward the user) to the installation portion 61 of the fixed member 60. With the cylindrical portion 78 of the movable member 70 guided by the pillar portion 63, the stopper portion 75 abuts against the grip portion of the lever handle 104, so that the movable member 70 will not come off the fixed member 60 even when urged by the compression coil spring 53.

[0066] The operating unit 76 is provided on the movable member 70 and is capable of receiving an input of force for moving the movable member 70 toward the installation portion 61. The operating unit 76 is configured to be able to receive, for example, a force input in the direction of movement of the movable member 70 toward the installation portion 61, as well as a force input from diagonally above intersecting the direction of movement. The operating unit 76 has, for example, a convex curved surface on the side opposite the installation portion 61 in the direction of movement of the movable member 70. The operating unit 76 also protrudes upward, for example, from the upper front portion of the first fixed component 91, i.e., the upper plate portion 88. The operating unit 76 may also protrude left and right from the movable member 70, or may protrude downward from the abutment portion 71. In the illustrated example, the operating unit 76 protrudes up, down, left, and right from the movable member 70, with the largest protrusion being upward. This is to make it easier to hook the operating unit 76 from above and pull it.

[0067] 11 and 12, the movable member 70 and the operating unit 76 are fastened together by, for example, a screw 80. As an example, mounting portions 82, 83 that are inserted into the inside of the movable member 70 are provided on the top and bottom of the rear side of the operating unit 76, and the movable member 70 and the claws of the mounting portion 82 engage with each other, fastening the abutment portion 71 and the mounting portion 83 together.

[0068] (Action of lever handle operating device) 11 and 12, this lever handle operating device 50 can be attached to the door body 101 without modifying the door body 101. The operating part 76 is formed into a curved surface that is convex on the side opposite the installation part 61 in the movement direction of the movable member 70, and can receive input of force in the movement direction of the movable member 70 toward the installation part 61, as well as input of force from diagonally above that intersects with the movement direction. Therefore, the operating part 76 is located at a low position when viewed from the operation of the lever handle 104, and even if the operating part 76 is pressed from diagonally above, the movable member 70 can be smoothly moved toward the installation part 61.

[0069] By inputting force into the operating portion 76 and moving the movable member 70 toward the installation portion 61 of the fixed member 60, the pressing surface 72 of the abutting portion 71 of the movable member 70 slides against the gripping portion of the lever handle 104 and presses down the gripping portion. Therefore, the latch bolt of the door 100 can be released from the latch receiver without having to grip and press down the lever handle 104, thereby making the door body 101 rotatable. Here, if the door-opening device 10 is equipped with the door-opening device 20 and the lever handle operating device 50, when the latch bolt releases from the latch receiver, the door body 101 is subsequently opened by the action of the door-opening device 20. Therefore, the door body 101 can be opened simply by operating the lever handle operating device 50.

[0070] Because the operating portion 76 protrudes above the upper front portion of the fixed member 60, i.e., above the upper plate portion 68 of the fixed member 60, even if the door-opening device 20 is not provided, the door 100 can be easily opened by pulling it toward you by placing a hand on the operating portion 76. Furthermore, because the insertion space 74 of the movable member 70 is also open downward, the abutment portion 71 is not prevented from pressing down the gripping portion of the lever handle 104 midway, compared to when the bottom of the insertion space 74 is closed, and the lever handle 104 can be rotated appropriately to a position where the latch bolt disengages from the latch receiver.

[0071] Furthermore, the pillar portion 63 of the fixed member 60 is inserted into the cylindrical portion 78 of the movable member 70, and when the movable member moves, the cylindrical portion 78 slides relative to the pillar portion 63. In other words, the cylindrical portion 78 is guided by the pillar portion 63. Therefore, the strength of the lever handle operating device 50 can be increased.

[0072] In this lever handle operating device 50, when the movable member 70 is moved in the direction opposite to the installation part 61, the stopper part 75 of the movable member 70 comes into contact with the grip part in a state in which the cylindrical part 78 of the movable member 70 is guided by the pillar part 63 of the fixed part. Therefore, the movable member 70 is prevented from coming off the fixed member 60 while the lever handle operating device 50 is in use.

[0073] [Other embodiments] The above describes one example of an embodiment of the present invention, but the embodiment of the present invention is not limited to the above, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0074] The door-opening device 20 is attached to the upper end of the door body 101, but if there is no door stop corresponding to the upper end, it may be attached to the end where there is a door stop, for example, the side end.

[0075] In the door-opening device 20, the pressing portion 22 is provided between the door body 101 and the door stop 102A, and the compression coil spring 53 (biasing member) is provided on the side of the door body 101 opposite to the door stop 102A side in the thickness direction, but if installation space can be secured, the pressing portion 22 and the biasing member may be provided between the door body 101 and the door stop 102A. The pressing portion 22 may be directly pressed by the biasing member.

[0076] Although the mounting portion 21 of the door-opening device 20 has the clamp 23, the mounting portion 21 may be attached to the door body 101 by means other than the clamp 23, for example, by adhesive or fastening.

[0077] In the lever handle operating device 50, the pillar portion 63 is provided on the second fixed part 92 (fixed member 60) and the cylindrical portion 78 is provided on the movable member 70, but the pillar portion 63 may also be provided on the movable member 70 and the cylindrical portion 78 may be provided on the second fixed part 92 (fixed member 60). [Explanation of symbols]

[0078] 10 Door opening device 20 Door opening device 21 Mounting part 22 Pressing section 23 Clamp 24 Proximal end 25 Jaw 26 Connecting part 27 Spindle 28 Contact part 29 Connecting part 29A Stopper 32 Compression coil spring (biasing member) 33 Pressure receiving part 34 Transmission section 50 Lever handle operating device 60 Fixing member 61 Installation section 63 Column section 70 Movable parts 71 Contact part 72 Press down surface 75 Stopper part 76 Control section 78 Cylindrical part 78A opening 100 doors 101 Door body 102 slots 102A Doorstop 104 Lever Handle

Claims

1. a mounting portion fixed to an end portion of a door body of a swing door; a pressing portion provided on the mounting portion and pressing a door stop provided on the door frame by a biasing member; A door opening device having:

2. The pressing portion is provided between the end portion of the door body and the door stop, The biasing member is provided on the opposite side to the door stop side in the thickness direction of the door body, 2. The door opening device according to claim 1, wherein the pressing portion and the pressure receiving portion, which are movable relative to the mounting portion upon receiving the biasing force of the biasing member, are connected by a transmission portion that straddles the edge of the door body, and the pressing portion also moves as the pressure receiving portion moves.

3. The mounting portion has a clamp, The clamp has a base end provided on the opposite side of the door stop side in the thickness direction of the door body, a jaw portion of the clamp provided between the door body and the door stop, and a spindle that is threaded onto the base end and can move back and forth in the thickness direction of the door body, 3. The door opening device according to claim 2, wherein the base end and the jaw are connected by a connecting portion that straddles the edge of the door body, and the edge of the door body can be sandwiched between the tip of the spindle and the jaw.

4. The door-opening device according to claim 3, wherein a stopper is provided on the jaw side of the clamp to determine an upper limit of movement of the pressing portion by the biasing member.

5. The door opening device according to claim 3, wherein the transmission part moves while being guided by the clamp.

6. A lever handle operating device that is attached to a swing door equipped with a lever handle, a fixing member having an installation portion fixed to the door body near the lever handle; a movable member having a contact portion that can contact a grip portion of the lever handle and that is movable relative to the fixed member; an operation unit provided on the movable member and capable of receiving an input of a force for moving the movable member toward the installation unit; Equipped with the fixed member has a pillar portion extending from the installation portion side to the movable member side, the movable member includes a cylindrical portion having an opening on the fixed member side, the cylindrical portion being slidable relative to the column portion in a state in which the column portion is inserted into the cylindrical portion through the opening, A lever handle operating device, wherein the abutment portion has a depression surface that slides against the grip portion and presses down on the grip portion when the movable member is moved toward the installation portion.

7. 7. The lever handle operating device according to claim 6, wherein the operating portion is capable of receiving a force input in the direction of movement of the movable member toward the installation portion, and a force input from diagonally above intersecting the direction of movement.

8. The lever handle operating device of claim 6, wherein the movable member has a stopper portion that abuts against the grip portion when the movable member is moved in the direction opposite to the installation portion while the pillar portion is inserted into the tubular portion.

9. The door opening device according to any one of claims 1 to 5, A lever handle operating device according to any one of claims 6 to 8; A door opening device having:

Images